--- /dev/null
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements. See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership. The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License. You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing,
+# software distributed under the License is distributed on an
+# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+# KIND, either express or implied. See the License for the
+# specific language governing permissions and limitations
+# under the License.
+
+class TestCallExpression < Test::Unit::TestCase
+ def setup
+ @arguments = [
+ Arrow::FieldExpression.new("augend"),
+ Arrow::FieldExpression.new("addend"),
+ ]
+ @expression = Arrow::CallExpression.new("add", @arguments)
+ end
+
+ sub_test_case("==") do
+ def test_true
+ assert_equal(Arrow::CallExpression.new("now", []),
+ Arrow::CallExpression.new("now", []))
+ end
+
+ def test_false
+ assert_not_equal(Arrow::CallExpression.new("a", []),
+ Arrow::CallExpression.new("b", []))
+ end
+ end
+
+ def test_to_string
+ assert_equal("add(augend, addend)", @expression.to_s)
+ end
+end